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Subject[PATCH -mm] Taskstats fix getdelays usage information


Add usage to getdelays.c. This patch was originally posted by Randy Dunlap
http://lkml.org/lkml/2007/3/19/168

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: <balbir@in.ibm.com>
---

Documentation/accounting/getdelays.c | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)

diff -puN Documentation/accounting/getdelays.c~fix-getdelays-usage Documentation/accounting/getdelays.c
--- linux-2.6.20/Documentation/accounting/getdelays.c~fix-getdelays-usage 2007-04-19 14:41:45.000000000 +0530
+++ linux-2.6.20-balbir/Documentation/accounting/getdelays.c 2007-04-19 14:42:26.000000000 +0530
@@ -72,6 +72,16 @@ struct msgtemplate {

char cpumask[100+6*MAX_CPUS];

+static void usage(void)
+{
+ fprintf(stderr, "getdelays [-dilv] [-w logfile] [-r bufsize] "
+ "[-m cpumask] [-t tgid] [-p pid]\n");
+ fprintf(stderr, " -d: print delayacct stats\n");
+ fprintf(stderr, " -i: print IO accounting (works only with -p)\n");
+ fprintf(stderr, " -l: listen forever\n");
+ fprintf(stderr, " -v: debug on\n");
+}
+
/*
* Create a raw netlink socket and bind
*/
@@ -227,7 +237,7 @@ int main(int argc, char *argv[])
struct msgtemplate msg;

while (1) {
- c = getopt(argc, argv, "diw:r:m:t:p:v:l");
+ c = getopt(argc, argv, "diw:r:m:t:p:vl");
if (c < 0)
break;

@@ -277,7 +287,7 @@ int main(int argc, char *argv[])
loop = 1;
break;
default:
- printf("Unknown option %d\n", c);
+ usage();
exit(-1);
}
}
_
--
Warm Regards,
Balbir Singh
Linux Technology Center
IBM, ISTL
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